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The growth behavior of carbon nanotubes (CNT) deposited from C 2 H 2 by thermal CVD method was investigated. Nickel particles of diameter ranging from 15 to 90 nm were used as the catalyst. CNTs were deposited in various environments of N 2 , H 2 , Ar, NH 3 and their mixtures to investigate the effect of the environment on the CNT growth behavior. The deposition...
It has been well known that vertically aligned carbon nanotubes (CNTs) can be grown by thermal CVD in NH 3 environment. However, the mechanism of the vertically aligned CNT growth is yet to be clarified. In the present work, we investigated the effect of NH 3 gas on the CNT growth in the viewpoint of catalyst passivation. The particles of Ni or Co of diameter ranging from 17 to 58...
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